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Masked Mountain Frog (Philoria loveridgei)

The Masked Mountain Frog is a small, ground-dwelling frog of wet high-elevation rainforest and wet sclerophyll areas in northern New South Wales and south-east Queensland. It breeds in moist chambers in the forest floor rather than producing a free-living tadpole, so clearing, drainage, fire, sediment, roadworks and loss of wet ground cover can affect both breeding sites and nearby foraging habitat on development sites.

Conservation status

New South Wales, Biodiversity Conservation Act 2016: Endangered.

Breeding season

The Masked Mountain Frog breeds from November to January in moist terrestrial chambers. Eggs and developing young remain in the nest, so clearing, excavation, dewatering and trampling require particular care during this period. Moist forest-floor habitat is also used for shelter throughout the year.

Reproductive mode: Egg-laying with terrestrial, nidicolous development. Embryos complete development and metamorphosis inside the nest and do not enter open water.

Clutch size or Litter size: Mean 31.9 eggs per nest, based on 14 nests recorded at Border Ranges National Park.

Incubation or Gestation: Not recorded. Tadpole development and metamorphosis may take 1 to 4 months.

Size at hatching or birth: A hatchling length of 3.1 mm is reported, although further hatching details are not recorded.

Age at maturity: Not recorded for the Masked Mountain Frog.

Nest or egg sites: Moist, smooth-walled chambers or nest basins excavated in mud or soil, under rocks, leaf litter or logs, beside small creek banks, and in sphagnum bogs. The chambers contain moist jelly but no free water.

Breeding frequency: One clutch per year is reported.

Confirm timing locally before works, particularly after rainfall or changes in temperature, because calling and surface activity are associated with wet conditions and local high-elevation weather.

  • Calling: Males call mainly during the documented November to January breeding period, with December identified as the peak calling month. Calling is also recorded as possible from August to October and in March and April, so local wet-weather calling may extend beyond the core breeding period.
  • Egg laying: Eggs are laid from November to January in moist terrestrial chambers or nest basins in mud. Eggs are enclosed in individual jelly capsules within a sticky, liquefied jelly mass, and do not require open water.
  • Eggs in nest: Eggs and larvae remain in the nest while development and metamorphosis occur. Development may take 1 to 4 months, so nests from late breeding may contain developing young into February to May; exact timing is not recorded.
  • Metamorphs: Metamorphlings emerge from the terrestrial nest rather than leaving an aquatic tadpole habitat. Using the reported 1 to 4 month development period, emergence may occur from December to May, but the monthly emergence pattern is not recorded.
  • Active period: The species is diurnal and requires moist habitat throughout the year, but individuals remain concealed in underground burrows during non-breeding months. No separate month-specific activity period has been recorded, so activity should be treated as possible year round and dependent on suitable moisture.
  • Winter inactivity: Individuals shelter in underground burrows during non-breeding periods, including the cool, dry winter. The documents do not define exact winter entry or emergence dates, so June to August is a planning window for reduced surface activity in the species' subtropical, high-elevation range.
  • Highest clearing risk: Risk is highest from November to January because calling males, egg chambers and developing young are concentrated in moist ground near headwater creeks, seepages and bogs. Moist chambers, leaf litter and creek banks remain shelter habitat outside the breeding period, so clearing and hydrology changes can cause harm in every month.

Identification

The Masked Mountain Frog is a small, squat, ground-dwelling Philoria with short hind limbs and a well-developed dark head stripe. Identification in the field is difficult because northern Philoria species have overlapping colour and body-shape variation and very similar male advertisement calls.

Adults have a snout to vent length of 25 to 30 mm in males and 27 to 32 mm in females. The head is shorter than wide, the tympanum is indistinct, and the hind limbs are short, with tibia length about 38% to 47% of snout to vent length.

Dorsal colour varies from light grey to brown, reddish-brown, bronze or fawn. The flanks may be entirely black or carry a black mark. A dark brown or black stripe runs from the snout through the eye to the base of the arm. The underside is usually pale, sometimes with light mottling on the throat and hind limbs.

Males: 25 to 30 mm snout to vent length; nuptial pad absent or dark and weakly developed on the first finger.

Females: 27 to 32 mm snout to vent length; spatulae occur on the first and second fingers.

  • Look for a small, squat frog with short limbs, a distinct head stripe and variable brown, bronze, grey or fawn upperparts.
  • Record photographs of the head stripe, flank markings, dorsal colour and location, because colour alone is unreliable for separating northern Philoria species.

Identification: Similar species

The best field guide to northern Philoria is geographic location, provided the taxa are not sympatric. The species is separated from Philoria kundagungan by its well-developed head stripe and generally non-yellow, non-red abdomen. Philoria sphagnicolus is generally larger, 32 to 37 mm, and has a distinct black band or paired black patches on the lower back. Philoria pughi usually has yellow, red or maroon dorsal colouration and a distinct medial black flank mark.

These differences are not sufficient for all records. The supplied taxonomic account states that northern Philoria have overlapping colour and body-shape variation, and that male calls are almost indistinguishable. Specialist confirmation, and genetic identification where required, may be needed for uncertain records.

  • Do not rely on call alone to identify the species.
  • Treat an uncertain Philoria record from suitable habitat as a threatened frog record until an appropriately qualified specialist confirms the identification.
  • Use the location, habitat and diagnostic photographs together when reporting a record.

Identification: Field signs

Males call from moist chambers excavated in the ground. Calling activity can indicate breeding habitat even when frogs are not visible. Eggs are laid in moist chambers and are not associated with a free-living tadpole stage.

Look for small, smooth-walled chambers in moist soil, often close to creeks and beneath banks, rocks or leaf litter. These chambers may be difficult to detect without disturbing the habitat, so avoid excavation during searches unless authorised and necessary.

  • Search slowly through deep, moist leaf litter and beside small headwater drainage lines, springs and seepages.
  • Record calling males, chamber locations, eggs or metamorphlings, but do not handle or disturb nests unnecessarily.
  • Do not expect tadpoles in pools because development is completed inside the terrestrial nest.

Distribution

The Masked Mountain Frog occurs in a restricted, fragmented area of northern New South Wales and south-east Queensland. The supplied documents identify populations in rainforest ranges and protected areas rather than providing a complete state-wide distribution map or a total population estimate.

In New South Wales, the species is recorded from the Border Ranges, Mount Warning, Nightcap and Mount Nothofagus national park areas. In Queensland, it is recorded from Lamington, Springbrook and Mount Barney national parks.

The taxonomic review describes 98 museum specimens from 28 locations within one rainforest block containing the Border Ranges, Lamington, Mount Warning and Nightcap national parks. This is a specimen record summary, not an estimate of the current population.

States: New South Wales and Queensland.

NSW listing supplied: Endangered.

EPBC Act listing supplied: Not listed.

Museum record summary: 98 specimens from 28 locations in one rainforest block, reported in the taxonomic review.

Total population: Not reported in the supplied documents.

Population trend: Not reported in the supplied documents.

  • Northern New South Wales: Border Ranges, Mount Warning, Nightcap and Mount Nothofagus areas.
  • South-east Queensland: Lamington, Springbrook and Mount Barney areas.
  • Relevant broad bioregional setting: subtropical rainforest ranges of the Border and McPherson ranges and adjoining high-elevation protected areas.

Distribution: Subpopulations and connectivity

The species is associated with separate mountain and rainforest blocks, and the taxonomic review notes that geographic location is important for identification because northern Philoria taxa have restricted ranges. Modelled habitat for P. loveridgei was separated into five northern ecological target areas because unsuitable habitat separates them and much modelled habitat was considered unsuitable.

For project planning, treat suitable headwater habitat and the intervening moist forest floor as potentially connected habitat rather than assessing only the stream channel. Fragmentation of wet forest and loss of moist ground cover can remove habitat used outside the breeding site.

  • Map all suitable first-order drainage lines, springs, seepages, streamside bogs and adjacent moist forest before clearing.
  • Maintain connections along occupied first-order streams where the species is recorded in riparian habitat.
  • Use the recorded location and surrounding suitable habitat to define the management area, not only the point where a frog was found.

Habitat

The Masked Mountain Frog uses wet, high-elevation rainforest and wet sclerophyll habitat, especially saturated headwaters and moist forest floor. Breeding habitat is concentrated around small streams, springs, seepages and streamside sphagnum bogs, while feeding habitat extends into adjacent forest.

Breeding habitat consists of boggy headwaters of rainforest streams, usually first-order streams with some rare exceptions, together with springs, seepages and streamside sphagnum bogs. The substrate must remain moist throughout the year.

Adults also require forest cover and deep, moist leaf litter beside the breeding habitat. The broader setting includes subtropical rainforest and wet sclerophyll vegetation communities in the Border and McPherson range region.

Elevation: Described as high altitude, but no numerical elevation limit is provided for P. loveridgei in the supplied documents.

Moisture requirement: High moisture is required throughout the year.

Stream order: Usually first-order headwater streams, with some rare exceptions.

  • Prioritise saturated headwater drainage lines and their banks.
  • Map springs, seepages, sphagnum mats, boggy ground and moist chambers beneath leaf litter, rocks or banks.
  • Retain rainforest or wet sclerophyll canopy and the deep litter layer around occupied or suitable sites.

Habitat: Development-site habitat

Roads, drainage works, trenching, earthworks and clearing can alter the soil and litter moisture conditions that the species depends on. Silt entering headwater habitat and changes to hydrology can affect both breeding chambers and nearby terrestrial habitat.

Where the species is recorded in riparian habitat along a first or second-order stream, the supplied forestry protocol recommends a connection corridor on that stream. Where the record is elsewhere, it recommends a 50 metre radius exclusion zone.

  • Keep machinery, spoil, fuels, concrete washout and sediment controls out of saturated headwater habitat.
  • Avoid concentrating runoff into springs, seepages, bogs or first-order channels.
  • Apply the relevant approval conditions and obtain project-specific advice from the NSW environment regulator before disturbing occupied or suitable habitat.

Foraging habitat

Adults forage on land in deep, moist leaf litter and under forest cover. The supplied documents identify small leaf-litter invertebrates as the main food and report that foraging can occur several hundred metres from breeding habitat.

The species eats small invertebrates in deep, moist leaf litter. Adults forage terrestrially in forest adjacent to breeding sites, and may travel up to several hundred metres from the headwater, spring, seepage or bog used for breeding.

The documents do not identify particular food plants. Vegetation is important as forest cover and as the source of a moist, stable litter layer rather than as a recorded food resource.

Food: Small leaf-litter invertebrates.

Foraging mode: Terrestrial foraging in thick, moist leaf litter.

Foraging distance: Up to several hundred metres from breeding habitat.

  • Retain deep leaf litter, fallen woody material and shaded forest floor around breeding habitat.
  • Avoid clearing or repeatedly compacting adjacent moist forest used for terrestrial foraging.
  • Inspect the wider forest floor, not only the riparian strip, when assessing habitat affected by a road, pipeline or construction footprint.

Breeding habitat

Breeding occurs in moist chambers excavated in the ground, commonly near small creeks and in saturated forest-floor habitat. Embryonic development is completed within the nest, so drying, excavation and loss of protective cover can directly affect eggs and developing young.

Males call from moist, smooth-walled chambers constructed in the ground. Chambers may be close together on the forest floor, especially along creeks. Eggs are deposited in a sticky, liquefied jelly mass rather than a foam nest.

The embryos complete development and metamorphosis inside the nest. There is no truly aquatic tadpole stage, and metamorphlings emerge from the terrestrial chamber. Breeding habitat therefore includes moist soil, leaf litter, rocks, creek banks, springs, seepages and sphagnum bogs, rather than only open water.

Breeding season: November to January.

Nest: Moist, smooth-walled terrestrial chamber excavated in the ground.

Eggs: Eggs are deposited in a sticky, liquefied jelly mass; a clutch size is not reported for P. loveridgei in the supplied documents.

Incubation and development: Embryos complete development and metamorphosis in the nest; there is no free-living aquatic tadpole stage.

Age at maturity: Not reported in the supplied documents.

Lifespan: A reproductive life span of 1 to 4 years, with a mean of 2 years, is estimated in the supplied regional assessment.

  • Avoid clearing, excavation, grading, vibration and trampling in moist forest-floor habitat during the breeding period.
  • Do not excavate suspected chambers during fauna searches unless authorised and necessary.
  • Protect the hydrology of small headwaters, springs, seepages and streamside bogs.

Breeding habitat: Breeding-site protection

The species requires saturated substrate throughout the year. Breeding chambers may occur under rocks, leaf litter or creek banks, and may be close to one another. A record in riparian habitat along a first or second-order stream should trigger protection of the stream connection corridor under the supplied forestry protocol.

  • Treat moist chambers, saturated banks, sphagnum mats, seepages and adjacent leaf litter as breeding habitat where the species is present or strongly suspected.
  • Prevent sediment, altered runoff and groundwater interception from reaching occupied headwaters.
  • Retain moist forest-floor connections between the breeding stream and adjacent foraging habitat.

Sheltering habitat

The Masked Mountain Frog shelters and breeds in concealed chambers in the moist forest floor. Its sheltering habitat is small-scale and easily damaged by machinery, fire, drying, soil disturbance and removal of leaf litter.

Adults and developing young use chambers excavated in moist ground. Chambers occur under or beside leaf litter, rocks and the banks of small creeks, and may be close together along creeks. Streamside sphagnum mats, mud, rock cracks and rubble are associated with Philoria breeding habitat generally, although the supplied description for P. loveridgei specifically emphasises ground chambers.

Deep, moist leaf litter and forest cover provide terrestrial shelter and maintain the humidity needed around the chambers.

Shelter type: Moist terrestrial chambers in the ground.

Associated cover: Deep moist leaf litter, rocks, creek banks, forest cover and, more generally for Philoria, sphagnum bogs, mud, rock cracks and rubble.

Shelter dimensions: Not reported in the supplied documents.

  • Retain leaf litter, rocks, banks, sphagnum and fallen material in occupied and suitable habitat.
  • Keep vehicles, stockpiles and foot traffic away from moist ground and creek banks.
  • Avoid burning or removing the litter and understorey around headwater breeding habitat.

Sheltering habitat: Operational inspection

A frog may be concealed even when calling males are not detected. Surveys for the northern Philoria species were conducted by quietly walking transects for at least 15 minutes and using call imitation or broadcast calls at 10 metre intervals. For P. loveridgei, calling activity is associated with the breeding season and daytime surveys were used in the cited study.

  • Use an experienced amphibian ecologist for searches in suitable high-elevation rainforest and headwater habitat.
  • Search in suitable weather and during the documented breeding period where practicable.
  • Mark and protect any chamber, calling location or occupied headwater immediately, then establish the required exclusion or connection corridor under project approvals.

Threats: Clearing and fragmentation

The main project risks are loss of wet forest, drying or alteration of headwater hydrology, fragmentation, sediment, road construction, fire and climate-driven drought. The species has a restricted and fragmented range and depends on permanently moist ground and forest litter.

Clearing removes rainforest or wet sclerophyll cover, deep litter and moist soil used for foraging, shelter and nesting. Fragmentation is a concern because suitable habitat is separated by unsuitable habitat, and the species is confined to a limited number of mountain and rainforest blocks.

The supplied forestry protocol recommends a stream connection corridor for a record in riparian habitat along a first or second-order stream, or a 50 metre radius exclusion where the record is elsewhere.

  • Avoid clearing occupied headwaters, springs, seepages, bogs and adjacent moist forest.
  • Retain a connected forest corridor along occupied first and second-order streams.
  • Do not use a point record as the full habitat boundary.

Threats: Hydrology, roads and sediment

Changes in soil and litter moisture from logging and roads were ranked among the highest disturbance concerns in the supplied regional assessment. Altered hydrology, road construction, siltation from logging and siltation from roads were also identified as threats.

Roads and construction can intercept or redirect groundwater and runoff, compact the forest floor, and deliver sediment to headwater channels, seepages and bogs.

  • Keep road alignments, drainage outlets, trenching and dewatering away from saturated headwaters and seepages.
  • Install and maintain sediment controls before earthworks begin.
  • Prevent concentrated runoff, sediment and chemical pollution from entering breeding habitat.
  • Monitor moisture and sediment conditions after construction, particularly following heavy rain.

Threats: Fire, drought and climate change

The species is sensitive to drought and fire because it depends on wet areas and has a restricted range and slow life-history traits. The 2019 to 2020 fires affected an estimated 54% of suitable habitat in the western populations of P. loveridgei, although the cited post-fire survey covered only five western sites and calling males were still detected at some burnt sites.

Fire can remove canopy, understorey and leaf litter, while drought reduces stream and soil saturation. Recovery should not be assumed simply because frogs are detected after fire.

Estimated western suitable habitat affected by 2019 to 2020 fires: 54%.

Western P. loveridgei sites surveyed in 2020 to 2021: Five sites, including two burnt sites.

  • Do not burn occupied or suitable moist headwater habitat unless required for an approved ecological objective and supported by species-specific advice.
  • Protect unburnt moist refuges and retain leaf litter and ground cover after fire.
  • Assess fire severity, stream saturation, canopy cover and litter condition when evaluating post-fire habitat.

Threats: Predators, disease and other disturbance

The regional disturbance assessment lists introduced predators, disease, trampling and pollution among potential threats, although it provides no P. loveridgei-specific severity ranking for all of these pressures. Trampling is a direct risk to concealed chambers and moist litter, while disease risk supports the use of clean equipment and hygiene procedures between sites.

  • Restrict access through occupied headwater and bog habitat.
  • Use amphibian hygiene protocols for footwear, equipment and handling containers between sites.
  • Do not move frogs, soil, leaf litter or water between catchments or project areas.
  • Report sick or dead frogs through the relevant state wildlife disease reporting pathway.

Survey methodology: 1. Calling-male transects

Survey this species in its specialised habitat of boggy headwaters, springs, seepages, streamside bogs and moist rainforest or wet sclerophyll forest. Published survey work detected calling males along headwater transects during the breeding season, with detection strongly affected by moisture, elevation, fire and drought.

Survey potential habitat from September to February, which covers the broader breeding period used for northern Philoria surveys. Philoria loveridgei breeding has also been recorded from November to January.

Walk a transect through or beside first-order headwater drainage lines, springs, seepages, streamside bogs and adjacent moist forest. Walk quietly for at least 15 minutes per transect.

At 10 metre intervals, imitate the male advertisement call or broadcast a recorded male call with a hand-held speaker, then record all calling males and their positions.

Use daylight surveys. Calling activity is minimal at night for this species group, so night spotlighting should not replace daytime call surveys.

Published survey period: September to February

Breeding period reported for Philoria loveridgei: November to January

Minimum transect observation time: 15 minutes

Call elicitation interval: 10 metres

Survey methodology: 2. Repeat visits and weather

Complete up to five repeat surveys at each site where project risk, habitat quality or detection uncertainty warrants it. The published study averaged three surveys per site.

Survey when calling conditions are suitable, and record air temperature, water temperature, relative humidity, cloud cover and precipitation at each visit.

Record stream saturation or visible moisture conditions, because stream saturation was a strong predictor of occupancy for northern Philoria and the species requires high moisture throughout the year.

Do not treat a failed call survey as proof that the species is absent. Record fire severity, drought stress, elevation, stream condition and the proportion of burnt bank and stream bed.

Published repeat effort: Up to 5 surveys per site, mean 3

Weather variables recorded: Air temperature, water temperature, relative humidity, cloud cover and precipitation

Published 2020 to 2021 survey programme: 5 P. loveridgei sites in the western part of its range

Survey methodology: 3. Habitat and disturbance assessment

Search the full area that could be affected, including the stream line, banks to at least 20 metres where accessible, seepages, bogs, springs and adjacent moist leaf litter habitat. The species may forage several hundred metres from breeding habitat.

Map potential breeding chambers and moist refuges under rocks, leaf litter and stream banks without disturbing them unnecessarily. Philoria loveridgei lays eggs in moist chambers in the ground and has no truly aquatic tadpole stage.

Record whether habitat is unburnt or burnt, and score fire severity separately on the stream bed and on both banks. The published assessment used unburnt, low, moderate, high and extreme severity categories.

Where species identification is uncertain, retain photographs, call recordings, precise coordinates and habitat notes. Northern Philoria species can be difficult to distinguish by appearance and call, and geographic location is an important identification aid.

Adjacent foraging distance reported for Philoria: Up to several hundred metres from breeding habitat

Fire assessment bank widths: 10 metres and 20 metres on both sides of the stream

Known nest setting: Moist chambers in ground, under banks, rocks or leaf litter

Survey methodology: Minimum effort and reporting

  • Use a minimum of one 15 minute daytime call transect through each discrete area of potential habitat, then increase effort to repeat visits where habitat is suitable, records are nearby or conditions are dry or disturbed.
  • Undertake repeat surveys during the September to February activity period, with a focus on November to January breeding activity.
  • Submit all records, including non-detections, call recordings, photographs and mapped habitat, to the relevant state wildlife database and include the database record number in the project file.
  • Report survey dates, start and finish times, observer names, transect length, weather, moisture conditions, call response, number and location of calling males, fire condition and any handling or relocation.
  • Use appropriately authorised personnel for any capture, handling, tissue collection or genetic confirmation, and obtain the required scientific and animal ethics approvals before work begins.

Before habitat disturbance: Avoid and minimise

Avoid disturbing the saturated headwater habitat on which this frog depends. Plan around the breeding period, retain connected moist habitat and treat apparently small seepages, bogs and leaf-litter refuges as potential habitat until assessed.

prescription for a riparian record: Place a connection corridor on the first- or second-order stream

prescription outside riparian habitat: 50 metre radius exclusion around the record

  • Redesign the work to retain first-order headwater streams, springs, seepages, streamside bogs, moist rainforest or wet sclerophyll vegetation and deep moist leaf litter.
  • Retain a connected corridor along any first- or second-order stream where the species is recorded in riparian habitat. The NSW forest protocol also specifies a 50 metre radius exclusion where a record is outside riparian habitat.
  • Keep machinery, spoil, sediment, fuels, concrete washout and drainage changes away from headwaters, seepages, bogs and stream banks.
  • Avoid fragmenting moist habitat between known or potential breeding sites. Map retained habitat and connection corridors before clearing.

Before habitat disturbance: Approvals and work planning

  • Check whether the action requires an EPBC Act referral. The species is identified as not listed under the EPBC Act in the supplied assessment, but confirm the current listing before relying on that status.
  • Confirm NSW threatened-species requirements, scientific licence requirements and any other state or territory approvals before survey, capture, handling or relocation.
  • Prepare a fauna management plan that identifies potential habitat, exclusion areas, access routes, sediment controls, weather limits, spotter catcher responsibilities, stop-work triggers and reporting requirements.
  • Schedule clearing and ground disturbance outside the November to January breeding period where practicable, and avoid work during prolonged dry conditions when moist refuges may be reduced.
  • Stage the works so that retained moist habitat and movement connections remain available before each clearing stage begins.

Before habitat disturbance: Pre-clearance preparation

  • Complete the call surveys and habitat inspection before finalising the clearing boundary, including all headwater lines, seepages, bogs, stream banks and adjacent moist forest.
  • Mark exclusion buffers, retained corridors, nest-prone moist ground, rocks, logs, leaf litter patches and no-go access areas on plans and on the ground.
  • Install exclusion fencing where it can prevent machinery entry, sediment movement or fauna movement into the work area without blocking access to retained habitat.
  • Brief operators using a site map and photographs. Confirm the fauna spotter catcher's authority, communication method, relocation area, wildlife carer contacts and emergency veterinary arrangements.
  • Do not remove rocks, logs, litter or stream-bank material during preparation unless the fauna management plan specifically allows it and an authorised spotter catcher is present.

During habitat disturbance: Daily controls and machinery interface

Keep clearing slow, supervised and confined to the approved footprint. The spotter catcher must have authority to stop machinery whenever moist breeding habitat, a frog, a nest chamber or an unapproved impact is identified.

  • Inspect exclusion fencing, sediment controls, access routes and marked buffers before work starts each day and after heavy rain.
  • Have the fauna spotter catcher inspect the active work area before machinery enters and remain able to communicate directly with the operator.
  • Clear vegetation and ground habitat in short stages towards retained habitat, at a speed that allows the spotter catcher to inspect exposed ground, leaf litter, rocks, logs and stream banks.
  • Keep machinery outside the 50 metre radius exclusion around a non-riparian record and outside the approved riparian connection corridor unless the approval specifically permits otherwise.
  • Stop work before entering any seepage, bog, headwater, stream bank or moist leaf-litter area that was not assessed in the fauna management plan.

During habitat disturbance: Habitat feature handling

  • Treat moist chambers under stream banks, rocks, logs, deep leaf litter and sphagnum or other bog vegetation as potential frog refuges and breeding sites.
  • Do not roll rocks, pull apart banks, rake leaf litter, remove logs or compact saturated ground without an authorised fauna spotter catcher inspecting the feature first.
  • Prevent sediment, altered drainage, dewatering, chemical spills and washout from entering headwaters, seepages and bogs.
  • Do not use hollow-bearing tree procedures as a substitute for ground-habitat protection. The documented habitat features for this species are saturated headwaters, bogs, moist chambers, rocks, banks, leaf litter and adjacent forest.

During habitat disturbance: Animal found, injury and stop-work response

  • Stop the activity immediately if Philoria loveridgei is found, if a nest chamber is exposed, or if the work is about to enter an unapproved moist habitat feature.
  • Keep people, machinery and unnecessary lighting away from the frog and allow the authorised spotter catcher to assess it without chasing or repeatedly handling it.
  • Only an appropriately authorised person may capture or handle the frog. Use the minimum handling needed to move it from immediate danger to nearby retained habitat with suitable moisture, cover and connectivity.
  • Do not move the frog to an unrelated site or across a substantial habitat break. Record the original and release coordinates, habitat condition, time, weather, method and person responsible.
  • Place an injured frog in a clean, secure, temperature-appropriate container and arrange prompt assessment by a veterinarian or authorised wildlife carer. Do not release an injured animal without professional direction.
  • Resume work only after the spotter catcher and environmental officer have agreed that the animal, nest or habitat feature is protected and the control has been recorded.

During habitat disturbance: Records and escalation

  • Record every detection, attempted detection, handling event, relocation, injury, mortality, nest chamber, habitat breach and stop-work event.
  • Photograph the animal and habitat where this can be done without causing additional disturbance, and retain the call recording where identification is based on calling.
  • Escalate any mortality, repeated relocation, buffer breach, sediment impact, drainage change, fire impact or detection outside the approved impact area to the project environmental officer and relevant regulator.
  • Update the site map daily so that retained habitat, active work areas, animal locations and revised exclusion areas are visible to the next work crew.

After habitat disturbance: Post-clearance checks

The end of clearing is not the end of the risk. Check the retained headwater habitat, confirm that controls remain effective and monitor whether moisture, cover and connectivity have been maintained.

  • Inspect the completed footprint and retained buffers for exposed nest chambers, crushed rocks or logs, compacted moist ground, sediment deposition, altered drainage and unplanned vegetation loss.
  • Complete a fauna spotter catcher sweep of disturbed ground, stockpiles and retained habitat edges before demobilisation, using the same care for moist leaf litter and stream-bank features as during clearing.
  • Repair exclusion fencing, sediment controls and drainage controls immediately if they are damaged or are directing water, sediment or contaminants towards headwaters, seepages or bogs.
  • Confirm that all relocated animals, injuries, mortalities, habitat breaches and stop-work events have been closed out in the project register.

After habitat disturbance: Monitoring and reporting

  • Monitor retained habitat during the next suitable September to February survey period using daytime calling-male transects, with repeat visits where the project has affected habitat or detection remains uncertain.
  • Use the published minimum transect approach of 15 minutes, call elicitation at 10 metre intervals and recording of weather and moisture conditions, then compare results with pre-work records.
  • Inspect stream saturation, seepages, bogs, leaf litter, stream banks, sediment and connectivity after rainfall and after any change to drainage or fire condition.
  • Submit new records and monitoring results to the relevant state wildlife database and provide the regulator with any report required by the approval or fauna management plan.

After habitat disturbance: Residual impacts and offsets

  • Recalculate the area of breeding and adjacent foraging habitat lost, degraded or isolated after construction, rather than reporting only the area of vegetation cleared.
  • Seek regulator advice on offsets or additional conservation measures if approved impacts remain on occupied habitat, headwaters, bogs, springs, seepages or connectivity.
  • Retain the species record, habitat map, survey data, handling records and monitoring results in the project environmental file for future maintenance and expansion works.

Rehabilitation actions: Restore habitat structure and water

Rehabilitation should restore wet, connected ground habitat rather than only replacing canopy cover. The target condition is moist rainforest or wet sclerophyll cover around headwaters, springs, seepages and bogs, with intact leaf litter and sheltered ground refuges.

Habitat target: Boggy headwaters, springs, seepages, streamside bogs and moist rainforest or wet sclerophyll forest

Ground habitat target: Deep moist leaf litter, sheltered chambers, rocks, logs and stream-bank cover

  • Re-establish natural drainage and keep headwater channels, springs, seepages and bogs saturated without creating erosive flows or permanent barriers.
  • Use locally appropriate native rainforest or wet sclerophyll plants specified by the project ecologist and approvals, with a structure that restores canopy, understorey and shaded moist ground.
  • Replace compacted soil with suitable site soil and retain or add deep moist leaf litter where this will not spread weeds or pathogens.
  • Reinstate stable rocks, logs and other natural ground cover from the site where practicable, placing them beside rather than across drainage lines unless the original arrangement requires otherwise.
  • Do not introduce fish, construct drainage that dries breeding habitat or use materials that contaminate wet ground.

Rehabilitation actions: Connectivity, weeds and predators

  • Maintain a continuous moist connection along retained first- and second-order streams and between restored patches.
  • Control weeds without disturbing nest chambers, stream banks or moist leaf litter, and prevent machinery and washdown from spreading weeds or amphibian pathogens.
  • Manage feral animals and domestic animal access where they threaten restored headwater habitat, using methods approved for the site.
  • Keep construction lighting, vehicle access and repeated pedestrian traffic away from restored breeding areas.

Rehabilitation actions: Fire and monitoring outcomes

Fire monitoring bank widths: 10 metres and 20 metres on both sides of the stream

Survey success measure: Repeated confirmed use or calling-male detections under suitable survey conditions

  • Protect restored moist habitat from avoidable high-severity fire and include fire response measures in the site management plan.
  • Map the percentage of restored stream bed and both banks affected by any later fire, using the published unburnt, low, moderate, high and extreme severity categories.
  • Monitor restored habitat during September to February with daytime call transects, recording calling males, locations, weather, stream saturation, vegetation cover and evidence of breeding chambers.
  • Set success measures as intact moist headwater habitat, no sediment or drainage impact, functioning connectivity, persistent leaf litter and ground cover, and detection of calling males or other confirmed use over repeated suitable-season surveys.
  • Investigate declining moisture, loss of cover, weed spread, predator activity or failure to detect frogs, and adapt rehabilitation before further disturbance occurs.

Sources